卡坦量子计量学

Q2 Physics and Astronomy

Physics Open Pub Date : 2025-03-13 DOI:10.1016/j.physo.2025.100260

Gabriele Fazio , Jiayu He , Matteo G.A. Paris

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引用次数: 0

摘要

我们讨论了双量子比特门的特征，重点关注定义其Cartan分解的三个参数的联合估计的精度界限。我们推导出了最优的探测状态，这些状态可以最大限度地提高精度，最小化马虎度，并消除量子不相容。此外，我们分析了最优探针集的性质，并评估了它们对噪声的鲁棒性。

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Cartan quantum metrology

We address the characterization of two-qubit gates, focusing on bounds to precision in the joint estimation of the three parameters that define their Cartan decomposition. We derive the optimal probe states that jointly maximize precision, minimize sloppiness, and eliminate quantum incompatibility. Additionally, we analyze the properties of the set of optimal probes and evaluate their robustness against noise.

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来源期刊

Physics Open Physics and Astronomy-Physics and Astronomy (all)

CiteScore

3.20

自引率

0.00%

发文量

审稿时长

9 weeks